Igniter for internal-combustion engines.



I. IVI. DAYTON.

IGNITER FOR INTERNAL CONIBUSTION ENGINES.

APPLlcAloN FMD SEPT. ze, 1914.

II @@QIQUW Y Patented Dec. Il, 191?.

"1W W w Tn n WWW A n melint@ @lim my 4L, u In Application ile September 2E?, 19M. eral No,

ing had in ihn accompanying drawing; (fhnnivnl chnl'nQelf. with ih@ rnsln; that the hm of The ignitm'. which nsnninn is snngnlznns of hmnigfhz" he nuts 4r; and 4 may ply placvf'! :xmnnd the @heil-mh), steun 'which `he fhzun'ln it is n'ipnssnhn fo ipnU the taper is fonemi into n. hole in the4 body 01"" the s'lenl l ont of the tnhe 2 and thereby disignf'er casting. Ths Construction has ref p :me the insnafnon.

50 sultan in Short cilcn'lsnnlvl other ironing, Fnl'tmrn'lm'm a. gnS-tght joinss obtained 105 @ne prmpally to h@ (hsnngrnton of the hntn'vn the, am. Si and tnhe 2, and; bntween insnninn. owing tn fh@ excessw hozn in the Hw :nvm und rbnh as; n unit. and the (tasting mmhnsml chnmhm; und to ihn Iolgmentof 6 hy mmm; fr? Hw maltais 'l and that tight- Snnf; on fha fnpoaod edges of the nn'nn, :ming ihn ch mnn no v'; only fgjghtsns the when if, n than Bunting; bln', aso draws taper 110 stem 1 into its insulation, thereby keeping a gas-tight joint.

This construction enables the unskilled to remove the insulated parts of a make-andbreak igniter without in any way affecting the electric insulation or adjustment of the parts and obviates the necessity of the gas engine manufacturer doing any electrical testing on the igniter insulation.

The operation of the make-and-break ig` niter being well understood, I do not describe same, it being understood that my invention may be utilized in any form of igniter mechanism, having a movable member 10.

Having thus described my invention, I claim:

l. An ignite/r comprising a flanged body casting having an aperture in the body at right angles to the flange, a tube in said aperture, a. taper member in said tube, insulation between said tube and member, a stem projecting from said member through said flanged body and beyond the outer face thereof, and means insulated from said body and carried by said stem whereby said tube, stem and insulation are clamped in said ody as a unit, substantially as described.

2. An igniter comprising a flanged body casting having an aperture in the body at right angles to the flange, tube in said aperture, taper member in said tube, insulation between said tube and member, stem projecting from said member through the flanged body and beyond `the outer face thereof, a recess in said flange surrounding said stem, and means carried by said stem and fitting said recess, whereby said stem is centrally located inv said aperture, substantially as described.

3. An igniter comprising a body having a flange, an aperture part way through said body at right angles to the flange thereof, an aperture of lesser diameter than said first mentioned apertlne communicating and concentric therewith and completing an opening through said body, a tube in said first mentioned aperture, a tapered contact' member in said tube projecting freely from the ends thereof and from said second aperture, an insulation comprising rolled sheets of insulating material between said tube and member, said insulation projecting from both ends of said tube so as to present a free surface parallel with the axis of said niember.

4. An igniter comprising a flanged body, an aperture in the body at right angles to the flange said aperture extending part way through the body, a second aperture concentric wth said first aperture and communicating therewith but of lesser diameter, continuing through said body and forming with said first aperture an opening therethrough, a tube in said first aperture, a tapering member in said tube, insulation between said tube and member, a. stem projecting from said member through said second aperture and beyond the outer face of Said body and a removable contact point secured to oneend of said tapered member.

5. A make and break igniter including in combination, an igniter body, a 'movable electrode carried thereby, a xed electrode carried by the igniter body and eot'iperating with said movable electrode, said igniter body having an opening extending therethrough for said xed electrode, a tube through which said fixed electrode extends, insulation in said tube forming a continuous wall from end to end of this tube and projecting beyond the ends thereof, the stein of said electrode extending through th(l tube being tapered, said opening in the igniter body for the electrode having an enlarged portion forming a seat for the lube, and means carried by the outer end of the stein of the electrode for clamping the tub(` against its seat in the igniter body.

6. A make and break igniter including in eombinationan igniter body, a movable electrode carried by said ignitor body, a fixed electrode carried by said igniter body and cooperating with said movable eleetrode, said igniter body having an openingr extending therethrough for said fixed electrode, a tube through which the stein of the electrode extends, said stem being tapered. a sleeve of insulating material surrolnnling the stem of the electrode and located within said tube and extending beyond the ends thereof said ownino havin an enlarffed i A a: :a h

portion forming a seatfor the tube, a gasket between the ends of said tubo and the seat,

the stem of said electrode extending beyond JAMES M. DAYTON. l/V i tnesses F. I. VVns'roN, F. T. CASE. 

